6. On Oct. 4, 1941, Jack Potter wrote in his journal that he danced with a very nice lady at a wartime dance, and he hoped he would run into her again.

Mr. Potter told the Daily Mail: “She was an excellent dance partner and an older woman — I thought she was wonderful and I still do. It was definitely love at first sight, everything fell into place. It was uncanny really.”

7. Sixteen months later, the two were married. They’ve been together ever since.

9. More recently, Phyllis was diagnosed with dementia. Just like in “The Notebook,” Jack has taken to reading his diary to Phyllis at the nursing home where she now lives.

10. Jack says, “I often take the diaries of our time caravanning and show her the pictures, she enjoys that. Whenever I turn up to see her she stretches her arms out to hug me — she is very affectionate — despite being so unwell.”